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WorksheetsARCHITECTURAL BUILDING UTILITIES
Total questions: 36
Worksheet time: 18mins
Teflon, a white soft, waxy and non adhesive polymer is used as a leak prevention material for threaded pipes.
What is the chemical name of teflon?
Triflouroethane
Polyethylene
Tetrafluoroethylene
Pentafluoroethylene
An engineered material created through a patented procedure that bonds glossy porcelain-enameled metal to a structural composite through an injection moulding process, used in manufacturing bathtubs. What is the designated name of this patented material used in market today?
Xpelor
Dacron
Lucite
Americast
Which type of pump is commonly used to convey or remove storm or underground water from a pit?
The unit is submerged under water with the discharged connected above it and into the drain located at the street level.
Ejector pump
Turbine pump
Submersible pump
Jet pump
What kind of plastic fitting can be used to connect galvanized iron pipe to a plastic pipe directly without the use of coupling?
Union
Female adaptor
Male adaptor
Bushing
When designing a septic tank, which of the following practices is NOT acceptable in so far as standard trade practice and code requirement is concerned?
Vents not necessary
Inlet pipe connected at the leaching chamber
No airspace between underside of slab and scum line
All of these
In waste disposal system, one of the concerns of sanitary engineers and public health officials is the spread of disease caused by bacteria found in sewage. What type of bacteria are present in feces excreted by man and animals?
E.coli
Salmonella
Entamoeba histolytica
Necator americanus
What material has that property that allows the smooth flow of wastewater due to its low flow resistance?
Plastic pipe
Galvanized steel pipe
Concrete pipe
Cast iron pipe
What kind of joint which utilizes heat as a means of bonding monolithically plastic pipes and fittings of homogenous composition?
Heat bonding joint
Heat fusion joint
Fusion welding joint
Plastic welding joint
The following are examples of drainage fittings EXCEPT ______
Street tee
90° degree bend
Sanitary tee
Crawfoot
Which among the following classes of galvanized steel pipes has the thickest wall section?
Schedule 80
Schedule 60
Schedule 40
Schedile 10
Which of the following items is considered a fixture?
Floor drain
Bidet
Water closet
All of these
Which of the following conditions may cause backflow?
Backpressure
Difference in elevation
Cross connection
All of these
In the abbreviations PEx, what does x stand for?
Cross linked
Extra
Alkoxy component
Exterior application
Which of the ff. Paramters or factors can be used to size drainage pipes?
Fixture unit value
Length of pipe
Number and type of fixtures
All of these
Which of the following fixture combination can be technically considered a battery of fixture?
4 urinals
2 water closets, 1 lavatory, 1 shower head
1 shower
1 water closet, 1 shower and 1 urinal
Using the rule of thumb in the design of a septic tank with a digestive chamber capacity of 4 cubic meters,
What should be the liquid capacity of the leaching chamber?
1 cu mtr
2 cu mtrs
3 cu mtrs
4 cu mtrs
Pipes used in the plumbing industry are provided by manufacturers. The manufacturing of pipes is based on standards set by authorities and trade consultants.
Which of the following sizes is not commercially available, hence, pipes of this size are commonly substituted with a larger one?
1/2 inch
3/4 inch
1 1/2 inches
1 3/4 inches
A check valve is a kind of backflow prevention device used in what system of plumbing?
Sanitary drainage system
Water supply system
Storm drainage system
None of these
A globe valve is a kind of valve in which the flow of water is cut off by means of circular disk that fits against the valve seat. What is the appropriate position or direction of liquid flow inside the valve based on the given figure below?
Upside down to the right
To the left
To the right
Any direction
Vent Pipes should be installed in plumbing system in order to prevent ________
Backpressure
Evaporation
Capillary action
Leak
What design provision should be critically considered in the design and construction of a septic tank?
Manhole
Inlet and outlet
Airspace
All of these
Which in the list is a term NOT aptly used in sanitary drainage system?
Riser
Waste stack
Scum and sludge
Influent/effluent
Which of the following would logically have the least pipe size?
Fixture drain
House drain
Stack
Horizontal branch
A stack is approximately applicable to a vertical line of _______
Vent
Waste
Soil
All of these
A yoke is a type of ventilation used as an interconnection between what sections or portions of plumbing systems?
House drain and house sewer
Vent stack and soil stack
House drain and soil stack
House sewer and vent stack
Which of the following type of ventilation is used to provide air circulation for two traps placed back to back or side by side such as lavatories or urinals?
Individual vent
Circuit vent
Unit vent
Looped vent
The term impedance is used in transformers and other devices in ac system is a combination of _______
Resistance and reactance
Inductance and capacitance
Resistivity and conductivity
None of these
Mho is defined as ______
The reciprocal of ohm
Unit of conductance
a. only
Both a and b
Copper as a conductor has the property or properties of being ________
Ductile
Malleable
A only
A and b
Cables are conductors that are ______
Larger than wires
Stranded (no. 6 AWG and larger)
Both a and b
None of these
A factory assembly of one or more conductors, each individually insulated and enclosed In a metallic sheath of interlocking, metal tape or a smooth corrugated metallic tube.
Metal Clad Cable (type MC)
Shielded Non-metallic Sheathed Cable (type SNM)
Armored Cable (type AC)
Mineral Insulated, Metal Sheathed Cable ( type MI)
Fusible material in a fuse may be made of any of the following except _______
Lead
Silver
Iron
Tin
A type of switch used for transferring one or more load conductor connections from one power source to another
Trasfer switch
Isolating switch
General use switch
General snap switch
The following are components of a Fan Coil Unit (FCU) except ________
Fan
Coil
Filter
Condenser
Which refrigerant type is commonly used in split type air conditioning?
R-22
R-124
R-13
R-134A
What part of the air conditioning system pulls the air from intake through filters and distributes it to the conditioned space?
Cooling coil
Heating coil
Humidifier
Air handling unit
